The world\'s longest highway, Atal Tunnel, is all ready for the people to use it to travel from Manali to Lahaul and Spiti valley. The tunnel will help people travel in any kind of weather conditions. This will keep the valley open for the India even during extreme winter season. The

source https://news.abplive.com/india/atal-tunnel-abp-news-takes-you-inside-worlds-longest-highway-tunnel-1344309